You're Crash, a hacker on a mission to bring down Gibson, an AI that has grown past anyone's control. Every system you break into is guarded by a game, and you beat it to get through. STACK is Mahjongg solitaire under a trace: clear the tiles before the counter-hack severs your connection. DEFRAG is Klondike without the playing cards: sort the memory before the daemons find you. The overworld hub ties the runs together.

Learn how the game was made on the About page; the source is public.